#291F91#291F91

#291F91 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.5% C 0.176 H 275.9°. Best body text is #FFFFFF at 12.36:1 contrast (WCAG AA passes).

Color values

HEX	#291F91
RGB	rgb(41, 31, 145)
HSL	hsl(245, 65%, 35%)
HSV	hsv(245, 79%, 57%)
CMYK	cmyk(71.7%, 78.6%, 0%, 43.1%)
CIE-LAB	lab(21.93, 41.13, -60.44)
CIE-LCH	lch(21.93, 73.11, 304.24°)
OKLab	oklab(34.49% 0.0179 -0.1747)
OKLCH	oklch(34.49% 0.176 275.9)
XYZ	xyz(6.5136, 3.4951, 27.1139)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291F91 #87911F

analogous

#1F4E91 #291F91 #621F91

triadic

#291F91 #91291F #1F9129

tetradic

#291F91 #911F4E #87911F #1F9162

square

#291F91 #911F4E #87911F #1F9162

split-complementary

#291F91 #91621F #4E911F

monochromatic

#0C092C #1B145F #291F91 #372AC3 #5D51DA

Accessibility & contrast

On white

12.36

#291F91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#291F91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291F91

12.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291F91	#FFFFFF	#000000	##FFFFFF
##291F91	1.00	12.36	1.70	12.36
#FFFFFF	12.36	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003994

Deuteranopia (green-blind)

#002F8F

Tritanopia (blue-blind)

#004157

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #291f91;
/* rgb */ color: rgb(41, 31, 145);
/* oklch */ color: oklch(34.5% 0.176 275.9);

Tailwind

colors: {
  custom: {
    50: '#745db2',
    500: '#291f91',
    950: '#000000',
  },
}

SCSS

$custom: #291f91;
$custom-light: #745db2;
$custom-dark: #000000;

JSON

{
  "hex": "#291f91",
  "rgb": {
    "r": 41,
    "g": 31,
    "b": 145
  },
  "hsl": {
    "h": 245.263,
    "s": 64.773,
    "l": 34.51
  },
  "oklch": {
    "l": 0.34493,
    "c": 0.17564,
    "h": 275.9
  },
  "luminance": 0.03496
}

Semantic roles & 50–950 ramp

primary

#291F91

secondary

#B3BD4F

accent

#E840D9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #291F91

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →